Physics · Traffic Engineering and Greenshields Model
Consider four distinct operating states P, Q, R, and S on a linear Greenshields fundamental speed-flow diagram, where state P corresponds to free-flow speed condition and state S corresponds to jam density condition. If kP, kQ, kR, and kS denote their respective traffic densities arranged progressively from free-flow towards jam density, which of the following order correctly represents the traffic densities?
- 1kQ > kR > kP > kS
- 2kQ > kR > kS > kP
- 3kS > kR > kQ > kP✓
- 4kP > kQ > kR > kS
Correct answer
kS > kR > kQ > kP
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